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Added test.

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This commit is contained in:
Nikolai Kochetov 2021-10-25 11:18:00 +03:00
parent ee6bc3883f
commit db47dcf14f
2 changed files with 28 additions and 0 deletions
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3
tests/queries/0_stateless/01506_buffer_table_alter_block_structure_2.reference Normal file
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2020-01-01 00:05:00
2020-01-01 00:05:00
2020-01-01 00:06:00 hello

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tests/queries/0_stateless/01506_buffer_table_alter_block_structure_2.sql Normal file
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DROP TABLE IF EXISTS buf_dest;
DROP TABLE IF EXISTS buf;
CREATE TABLE buf_dest (timestamp DateTime)
ENGINE = MergeTree PARTITION BY toYYYYMMDD(timestamp)
ORDER BY (timestamp);
CREATE TABLE buf (timestamp DateTime) Engine = Buffer(currentDatabase(), buf_dest, 16, 0.1, 0.1, 2000000, 20000000, 100000000, 300000000);;
INSERT INTO buf (timestamp) VALUES (toDateTime('2020-01-01 00:05:00'));
--- wait for buffer to flush
SELECT sleep(1) from numbers(1) settings max_block_size=1 format Null;
ALTER TABLE buf_dest ADD COLUMN s String;
ALTER TABLE buf ADD COLUMN s String;
SELECT * FROM buf;
INSERT INTO buf (timestamp, s) VALUES (toDateTime('2020-01-01 00:06:00'), 'hello');
SELECT * FROM buf ORDER BY timestamp;
DROP TABLE IF EXISTS buf;
DROP TABLE IF EXISTS buf_dest;